that I had to have the plate destroyed! I had over-exposed my spirit,
and I feared this plate would not bear closer inspection (I did not
sign the minutes of the first three meetings).
[9] Unless, of course, there happens to be in the room a source of
ultra-violet rays other than the ordinary illuminant by which the
photograph is taken but which does not emit visible light rays. This
possibility may be disregarded for practical purposes.
[10] _Note._--Some believers in spirit photography will dissent
from this view on the ground that experiment has shown that when a
photograph is taken the extra is not produced by the reflection of
ultra-violet light from an “object” (partial materialisation or the
like) but by the use of a “psychic transparency” applied to the plate
and exposed to “spirit” light. With the first part of this we cordially
agree, but the hypothesis of the “psychic transparency” seems to be
no more than a resolute attempt to evade the plainest indications of
fraud. _Vide infra._--[ED., P.R.Q.]
[11] Readers should refer to Mr. E. J. Dingwall’s interesting article
on “Magic and Mediumship” in the January number of the _Psychic
Research Quarterly_.
[12] Cf. pp. 11-12.
[13] _Note._--This is a case where recognition _is_ possible because
(_a_) the “extra” and the original portrait can be laid side by side
and directly compared, (_b_) careful measurements can be made of the
facial angle and other characteristics, and (_c_) independent witnesses
in any desired number can make the comparison for themselves.
[14] Similar observations apply to “The Hunter Test” (_Light_, Feb.
_19th_.)
[15] _Cf._ p. 30 above.
TRANSCRIBER’S NOTES:
Italicized text is surrounded by underscores: _italics_.
Obvious typographical errors have been corrected.
Inconsistencies in hyphenation have been standardized.
Archaic or alternate spellings have been retained.